Attachment for type-setting machines.



H. A. ARMSTRONG. ATTACHMENT FOR TYPE SETTING MACHINES.

APPLICATION IILED MARA, 1908.

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H. A. AEMSTEONG. ATTACHMENT FOR TYPE SETTING MACHINES.

APPLICATION FILED MARA, 1908.

Patented Feb. 9, 1909.

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A TE WITNESSES A TTOHNF S- H. A. ARMSTRONG. ATTACHMENT FOR TYPE SETTING MAGHINES. APPLICATION FILED MARA, 1908.

Tia-Y Patented Feb. 9, 1909.

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controlled by the level of the metal in the metal pot, and in mechanism operable by the member and serving to sound, or render visible the signal, to notify the operator of the machine that the metal has reached a predetermined level. The member can-be ted to operate the signal at diderent levels, thus enabling the operator of the machine to determine exactly at which point he desires the alarm to sound or the signal to become visible.

Referring more particularly to the drawings, represents the metal pot of a typesetting machine, which contains the metal The metal pot is hinged or otherwise suitably mounted upon the machine in accordance with the usual practice. It has a cover 12 provided with an opening 13 therethrough. The opening 13 receives a sleeve lhaving a threaded portion 15 extending to the inner side of the cover and carrying a hoo "l6 formed to en at the under side of the cover. A fur ther body 17 is mounted upon the sleeve and engages at the upper side of the cover, be

ing held in position by a nut 18 mounted upon a threaded portion 19 of the sleeve.

A hollow rod 20 is movably arranged within the sleeve and near the upper end has a collar 21. A. disk 22. tapered to the periphery, is loosely mounted upon the rod 20 and is held in position by the collar 21. A float 23 of anyv suitable form is arranged within the metal pot and has a shank 24 adjustably arranged within the hollow rod 20. The shank24 has the end 25 bifurcated; the sides of the end 25 are sprung outwardly and resiliently engage at the inside of the hollow rod to maintain the shank in position therewithin. The float can be adjusted by moving the shank longitudinally within the hollow rod, and it is maintained in position by the outwardly sprung sides of the bifurcated end 25.

A bracket 26 having atone end a Ll-shaped portion 27 is mounted upon the frame 28 of the machine, adjacent to the metal pot, and

clamped in position by a thumb-screw 29. The bracket 26 has a support 30 carrying a bell 31. A hammer bar 32 is pivotally mounted upon a pin 33 carried by the bracket and has a shank 3e provided with a hammer head adapted to engage the bell to sound the same. The pin 33 has a spring 36 wound thereupon with the ends respectively engaging studs 37 and 38 of the hammer bar and'the bracket. The spring thus holds the hammer in a normal, inoperative position. A dog 39 is loosely mounted upon the pin 33 and has a projection 40 adapted to engage the hammer bar to swing the same against the tension of the spring 36. A lever ll is movably mounted, by means of a pin 4-2, upon the bracket, and has an arm 43 provided with shoulder The lever ll has the end provided with the arm 43, ar-

ranged adjacent to the head 22 of the hollow predetermined level for which the float is adjusted, the movement of the pot does not sound the alarm, the-head 22 upon the hollow rod passing over the shoulder as of the arm 43. lVhen the level of the metal falls to the predetermined point, howeier, the

head 22 comes into engagement with the shoulder 44 during the movement of the pot, and the lever ell is thereby operated to sound the bell. The lever has an extension 46 which is engaged by the rod 20 on the return movement of the pot, to return the lever to its original or normal position.

In the modified form of my invention shown in Fig. 6 I provide an electric bell 47 connecting with a suitable source of electrical supply such as batteries or the like. A support 48 is carried upon the nut 18 and has an opening through which the hollow rod 20 can freely pass. The support 48 has contacts 49 which are adapted to be electrically connected by the head 22. The contacts 49 are connected by means of conductors 50 and 51 with the alarm bell and the source of electrical supply so that the contacts are in the circuit. Consequently, when the head 22 is out of engagement with the contacts, the bell is silent, and when the head engages both of the contacts, the signal is sounded.

In the modified form of my invention shown in Fig. 7, I employ a signal base 52 slidably arranged upon the frame 53 of the machine and held in positionby a pin 54 having an adjustable head 55 and provided with a spring 56 which resilicntl holds the base 52 in place. The base 52 has a shoulder 57 adapted to be engaged by the head 22 so that the base itself, is moved as the pot A swinging hammer 58 is mounted upon the base and is arranged to engage the -120 ($0 having a laterally extended toe 61. ,The'

moves.

bell 59. Rigid with the hammer is an arm too 61 is arranged to be engaged by a stud (52 as the base s moved forward. The engagement of the toe with the stud depresses the arm and swings the hammer into an operative position. As the base advances, the stud passes beyond the arm and releases the latter to permit the hammer to swing against the bell to sound the same. The bell support 63 has a stud 64 for limiting the with respect to said member.

ments relative to the metal in said pot.

movement of the hammer. A spring serves to hold the hammer in a normal or inoperative position. l Having thus described my invention, I; claim as new, and desire to secure by Letters Patent 1. In a typesetting machine, in eombination, a metal potar 'anged to move, a memher controlled by the level of the metal in said pot, and a. signal operable by said member, said member having means for resiliently holding it in a plurality of adjustwlrereby it (an be operated at a plurality of levels of the metal.

2. In a type-setting machine, in combination, a movable metal pot, having a cover provided with an opening, a member movably arranged in said pot and extending through said opening, said member being controlled by the level of the metal in said pot, a signal, and means operable by said member, when the same is in a predetermined position, for operating said signal, said member having means for resiliently holding it in a plurality of adjustn'ients wl'iei'eby it can be adapted to operate at difterent levels of the metal.

3. In a typesetting machine, in combination,-a metal pot, a signal, a member adapt- 1 ed to operate said signal, and a float controlled by the level of the metal in said pot, said float being connected with said member and being slidably movable longitudinally thereof, said float having means'for resilientlv holding it in a plurality of positions 1 4. In a typesetting machine; in combination, a metal pothaving a cover, said cover having a sleeve, means for holding said sleeve in posit-ion, a hollow rod movably arranged within said sleeve, a float within said pot and controllable by the metal therewithin, said float having a shank slida ly arranged within said sleeve, said shank having a part bifurcated resiliently to hold it in po sition within said sleeve, a signal, and means on said rod for operating said signal when said rod is in a predetermined position.

5. In a typesetting machine, in eombination, a metal pot, a stationary bell, a pivoted hammer adapted to engage said bell, a lever arranged to operate said hammer when moving in one direction, amember adapted to engage said lever to operate the same, and a float within said pot and controlled by the level of the metal, said float controlling said member.

6. In a typesetting machine, in combination, a metal pot. a fixed alarm, a hammer adapted to sound said alarm, a dog movably carried by said hammer and arranged opera tively to engage said hamn'ier when said dog is moved in one direction, means for holding said hammer normally inoperative, a movable member arranged operatively to engage said dog when moving in one direction, thereby to sound said alarm, said member inoperatively engaging said dog when moved in the opposite direction, a second member adapted to engage first member to on erate the same when in a predetern'lined position, and a float within said pot and controlled by the level of the metal therein, said floatcontrolling said seconc member.

7. In a typesetting i achine, in combination, a metrl pot, a bracket carrying a bell, a hammer pivoted upon bracltet and movable to said hell, 5: dog movably carried by said hammer and ar aged operatively to engage said hammer when moved in one direction, means for holding said hammer in a normal position out of engrge-' ment with said bell, tively to engage one direction thereby to ring said. bell, lever inoperatively said dog moved in. the opposite d tion, a m adapted to engage said ie 2r to op same when in a PYQKlQlIBTKFliDBLl a float. within said pot and c: 'rol level of the metal therein, said fi-Oilt controlling said member.

8. in a typesetting machine, in comb tion, a i'n etal pot, a bracket carrying a be I a hammer pivoted upon said bracket and movable to engage said bell, a dog movably carried by said hammer and arranged op .ltively to engage said hammer hen moved in one direction, means for hol no said ha: mer in a normal position out of engagemt with said bell, a lever arranged operativtr to engage said, dog when moving in one rection thereby to ring said bel, said a inoperatively engaging said when mo ed in the opposite direction, said lever h vine; an arm provided with a shoulder, member having a tapered. disk adapted to eng" said shoulder to operate. said lev float within said po and cont her, said member mo Vilitnesses 7 Ancosr JV 11mm 1.1; flier-lean, Tnos. T. Srocnsoann. 

